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    大河之剑天上来！！
    <ul id="test-list">
        <li>JavaScript</li>
        <li>Swift</li>
        <li>HTML</li>
        <li>ANSI C</li>
        <li>CSS</li>
        <li>DirectX</li>
    </ul>
    <hr>
    <form id="test-form" action="test">
        <legend>请选择想要学习的编程语言：</legend>
        <fieldset>
            <p>
                <label class="selectAll">
                    <input type="checkbox">
                    <span class="selectAll">全选</span>
                    <span class="deselectAll">全不选</span>
                </label>
                <a href="#0" class="invertSelect">反选</a>
            </p>
            <p><label><input type="checkbox" name="lang" value="javascript"> JavaScript</label></p>
            <p><label><input type="checkbox" name="lang" value="python"> Python</label></p>
            <p><label><input type="checkbox" name="lang" value="ruby"> Ruby</label></p>
            <p><label><input type="checkbox" name="lang" value="haskell"> Haskell</label></p>
            <p><label><input type="checkbox" name="lang" value="scheme"> Scheme</label></p>
            <p><button type="submit">Submit</button></p>
        </fieldset>
    </form>

    
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